124 1100 Series Nano Pump Service Manual
3 Repairing the Pump
Seal Wear-in Procedure
1 Fill a bottle with 100 ml Isopropanol and place the bottle head assembly of
the pump head that is supposed to be worn-in into the bottle.
2 Screw the adapter (0100-1847) to the AIV and connect the inlet tube from
the bottle head directly to it.
3 Connect the restriction capillary (5022-2159) to the outlet of the EMPV.
Insert its other end into a waste container.
4 Turn the system in purge mode and purge the system for 2 minutes with
isopropanol at a flow rate of 2 ml/min.
5 Turn the system to standard mode, set the flow to a rate adequate to achieve
a pressure of 350 bar. Pump 15 minutes at this pressure to wear in the
seals. The pressure can be monitored at your analog output signal, with the
handheld controller, Chemstation or any other controlling device connected
to your pump.
6 Turn OFF the pump, slowly disconnect the restriction capillary from the
EMPV to release the pressure from the system. Reconnect the capillary
going to the flow sensor and the connecting tube from solvent selection
valve to the AIV.
7 Rinse your system with the solvent used for your next application.
This procedure is required for standard seals only (5063-6589), but it will definitely damage
the normal phase application seals (0905-1420).
To Next Page
Loading...
Need help?
General
